| http://www.w3.org/ns/prov#value | - But it can be difficult to reconcile the knowledge that eating fish helps prevent heart disease, stroke and cancer, reduces hypertension and aids brain development with reports about elevated mercury levels in tuna and swordfish, and with recalls of fish tainted with listeria, salmonella and other dangerous bacteria.And how to balance the experts who recommend eating eight ounces of seafood a week
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